Package org.epics.pvdata.misc

This package provides a number of utility classes that are used by pvData code.

This package provides utility code:

multiChoice

Support for a multiChoice structure, which is a structure containing two fields: choices and bitMask. choices is an array of strings and bitMask selects a subset of the choices.

Message Queue

Support for queuing messages to give to requesters.

Thread

ThreadCreate and Executor

TimeFunction

Time how long a function call requires.

LinkedList

A double linked list facility that requires the user to allocate a node. It is more efficient that ArrayList and does not require the implementation to allocate storage for the nodes.

Timer

An implementation of Timer that does not require an object to be created for each timer request.

BitSet

An implementation of BitSet that can be serialized.

Queue

A queue implementation.

Destroyable

A base interface for destroy.

Serialize

A helper for serialization.

Interface Summary

Interface	Description
BitSetUtil	Utility functions for a BitSet related to a PVStructure.
Destroyable	Interface declaring destroy() method.
Executor	Schedule a command to be executed via a thread.
ExecutorNode	This is created by Executor.createNode and passed to Executor.execute();
LinkedList<T>	Linked List with user supplied storage for node.
LinkedListArray<T>	Convert a LinkedList to a LinkedListNode array.
LinkedListNode<T>	Interface for a LinkedListNode.
MessageQueue	A queue for Requester messages.
Queue<T>	A finite Queue.
QueueElement<T>	Interface for a QueueElement.
RunnableReady	The run method implemented by code that calls ThreadCreate.create;
ThreadCreate	ThreadCreate : Create a thread.
ThreadReady	Interface implemented by ThreadCreate
TimeFunction	Time a function call.
TimeFunctionRequester	The interface that must be implemented by code that calls TimeFunction.
Timer	Schedule a callback to be called via a timer thread.
Timer.TimerCallback	An interface implemented by requester.
Timer.TimerNode	An interface implemented by TimerFactory.

Class Summary

Class	Description
BitSet	This class implements a vector of bits that grows as needed.
BitSetUtilFactory	Factory that implements BitSetUtil.
ExecutorFactory	Create an IOCExecutor.
LinkedListCreate<T>	Create LinkedList, LinkedListNode, and LinkedListArray.
MessageNode	Node for a MessageQueue.
MessageQueueFactory	A factory that implements messageQueues.
QueueCreate<T>	A factory for creating a finite queue.
SerializeHelper	Serialization helper.
ThreadCreateFactory	Factory for creating threads.
TimeFunctionFactory	Factory to create a TimeFunction, which computes that average number of seconds a function call requires.
TimerFactory	Factory that creates a Timer.

Enum Summary

Enum	Description
ThreadPriority	The scan priorities for a record instance that is event or periodically scanned.